Cure kinetics of epoxy resin using 1,2,4,5-benzenetetracarboxylic acid/2-ethyl-4-methylimidazole salt as a latent hardener

1,2,4,5-Benzenetetracarboxylic acid/2-ethyl-4-methylimidazole (PMA/2E4MI) salt was prepared as a latent hardener for epoxy resin, and Fourier transform infrared was used to characterise its structure. The thermal latent curing property of PMA/2E4MI salt in diglycidyl ether of bisphenol A epoxy resin was investigated by storage stability, gelation time and differential scanning calorimetry measurements. The non-isothermal cure processes of...